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441c725ed5
There is error log when htab-mem benchmark completes. The error log looks as follows: $ ./bench htab-mem -d1 Setting up benchmark 'htab-mem'... Benchmark 'htab-mem' started. ...... (cgroup_helpers.c:353: errno: Device or resource busy) umount cgroup2 Fix it by closing cgrp fd before invoking cleanup_cgroup_environment(). Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20231219135727.2661527-1-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.